Thong sandal



FIG. 1 is a top and right front perspective view of a thong sandalshowing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof.

The ornamental design for a thong sandal, as shown and described.